IDocs
The intermediate documents (IDocs) that you can use in your Rational® Integration Tester project depend on the IDocs you selected before synchronizing any logical SAP applications servers in your project.
Every IDoc instance includes a reference to a metadata schema so that data structures can change over time. Typically, only the latest metadata version is used. However, Rational® Integration Tester assigns older metadata versions automatically when required; for example, when recording historic IDoc traffic.